8797161556 has 12 divisors (see below), whose sum is σ = 15770521620. Its totient is φ = 4291298240.

The previous prime is 8797161533. The next prime is 8797161563. The reversal of 8797161556 is 6551617978.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1543232656 + 7253928900 = 39284^2 + 85170^2 .

It is a super-2 number, since 2×8797161556² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8797161497 and 8797161506.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26820451 + ... + 26820778.

It is an arithmetic number, because the mean of its divisors is an integer number (1314210135).

Almost surely, 2^8797161556 is an apocalyptic number.

It is an amenable number.

8797161556 is a deficient number, since it is larger than the sum of its proper divisors (6973360064).

8797161556 is a wasteful number, since it uses less digits than its factorization.

8797161556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53641274 (or 53641272 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 55.

The square root of 8797161556 is about 93793.1850189554. The cubic root of 8797161556 is about 2064.3382320954.

The spelling of 8797161556 in words is "eight billion, seven hundred ninety-seven million, one hundred sixty-one thousand, five hundred fifty-six".